Obtained from:	https://github.com/borgbackup/borg/commit/2b93c83c179569d9aeb02c6aa387e5312590f505
		https://github.com/borgbackup/borg/commit/8abdd3b8bf065dceecd52d2b22d92b3c407a7c1d

--- pyproject.toml.orig	2026-03-18 18:57:08 UTC
+++ pyproject.toml
@@ -35,7 +35,7 @@ dependencies = [
     # Please note:
     # Using any other msgpack version is not supported by Borg development and
     # any feedback related to issues caused by this will be ignored.
-    "msgpack >=1.0.3, <=1.1.2",
+    "msgpack >=1.0.3, <=1.2.1",
     "packaging",
 ]
 
--- src/borg/helpers/msgpack.py.orig	2026-03-18 18:57:08 UTC
+++ src/borg/helpers/msgpack.py
@@ -145,7 +145,7 @@ def is_supported_msgpack():
     version_check = os.environ.get('BORG_MSGPACK_VERSION_CHECK', 'yes').strip().lower()
 
     return version_check == 'no' or (
-        (1, 0, 3) <= msgpack.version[:3] <= (1, 1, 2) and
+        (1, 0, 3) <= msgpack.version[:3] <= (1, 2, 1) and
         msgpack.version not in []
     )